11243137 has 4 divisors (see below), whose sum is σ = 11904516. Its totient is φ = 10581760.

The previous prime is 11243131. The next prime is 11243149. The reversal of 11243137 is 73134211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6230016 + 5013121 = 2496^2 + 2239^2 .

It is a cyclic number.

It is not a de Polignac number, because 11243137 - 2⁷ = 11243009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11243131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330664 + ... + 330697.

It is an arithmetic number, because the mean of its divisors is an integer number (2976129).

Almost surely, 2^11243137 is an apocalyptic number.

11243137 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

11243137 is a deficient number, since it is larger than the sum of its proper divisors (661379).

11243137 is an equidigital number, since it uses as much as digits as its factorization.

11243137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661378.

The product of its digits is 504, while the sum is 22.

The square root of 11243137 is about 3353.0787345364. The cubic root of 11243137 is about 224.0246637915.

Adding to 11243137 its reverse (73134211), we get a palindrome (84377348).

The spelling of 11243137 in words is "eleven million, two hundred forty-three thousand, one hundred thirty-seven".